May, L. J. (1974). Teaching mathematics in the elementary school (2nd ed.). Free Press.
Chicago-referens (17:e uppl.)May, Lola June. Teaching Mathematics in the Elementary School. 2nd ed. New York: Free Press, 1974.
MLA-referens (9:e uppl.)May, Lola June. Teaching Mathematics in the Elementary School. 2nd ed. Free Press, 1974.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.